DOS AUTOS - SS BLACK JACK/BF OG SKITTLEZ

Strangest thing is that my biggest plant (the tall OG Zkittlez) has the lightest green leaves. I was stressed that this might be a bad omen but she's remained healthy. I provided just that one plant with extra top feeds and watering. Growth has remained steady and leaves remain light. The other trees have remained short & bushy but healthy, no PM or any other pests around.